#include <iostream>
using std::cout;
using std::endl;

int number = 100;

void print(){
    cout << "全局print()" << endl;
} 

namespace wd
{
int number = 200;

void print(){
    cout << "wd::print()" << endl;
} 

}


static int number2 = 300;
static void print2(){
    cout << "static print()" << endl;
}

namespace 
{
int number3 = 200;

void print3(){
    cout << "::print3()" << endl;
} 

}
